RT9170
Typical Operating Characteristics
Temperature Stability
Quiescent Current vs. Load Current
2.55
18
17
16
15
14
13
12
11
10
2.53
No Load
2.51
2.49
ILOAD = 250mA
2.47
2.45
2.43
2.41
VIN = 3.5V
VIN = 3.5V
VOUT = 2.5V
VOUT = 2.5V
2.39
2.37
2.35
C
IN = 1uF (Ceramic)
CIN = 1uF (Ceramic)
C
OUT = 1uF (Ceramic)
COUT = 1uF (Ceramic)
-35
-15
5
25
45
65
85
105 125
0
0.05
0.1
0.15
0.2
0.25
0.3
Temperature (°C)
Load Current (A)
Quiescent Current vs. Temperature
Quiescent Current vs. Supply Voltage
18
16
14
12
10
8
18
16
14
12
10
8
ILOAD = 200mA
No Load
No Load
ILOAD = 200mA
6
6
VIN = 3.5V
4
4
VOUT = 2.5V
VOUT = 2.5V
CIN = 1uF (Ceramic)
C
IN = 1uF (Ceramic)
2
2
COUT = 1uF (Ceramic)
COUT = 1uF (Ceramic)
0
0
2
2.5 3.5
3
4
4.5
5
5.5
-35
-15
5
25
45
65
85
105 125
Supply Voltage (V)
Temperature(°C)
Output Voltage vs. Supply Voltage
Dropout Voltage vs. Load Current
2.55
2.53
2.51
2.49
2.47
2.45
300
250
200
150
100
50
VOUT = 3.3V
TJ = 125°C
TJ = 25°C
TJ = -40°C
VOUT = 2.5V
IN = 1uF (Ceramic)
C
COUT = 1uF (Ceramic)
ILOAD = 1mA
0
2.5
3
3.5
4
4.5
5
5.5
0
0.05
0.1
0.15
0.2
0.25
0.3
Supply Voltage (V)
Load Current (A)
DS9170-11 March 2007
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RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
